/Engine/Plugins/Experimental/GeometryScripting/Source/GeometryScriptingCore/Public/GeometryScript/MeshMaterialFunctions.h
For all triangles with a Material ID matching the given value (From Material ID), update the Material ID to the new value (To Material ID).
static [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * RemapMaterialIDs ( [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * TargetMesh, int FromMaterialID, int ToMaterialID, [UGeometryScriptDebug](API\Plugins\GeometryScriptingCore\GeometryScript\UGeometryScriptDebug) * Debug )